Temporary header file '/tmp/2Ns4Y8DK0_/dump1.h' with the following content will be compiled to create GCC translation unit dump:

  // add defines
  #define __STDC_VERSION__ 201710L
#define _GXX_NULLPTR_T
#define CLUTTER_ENABLE_COMPOSITOR_API 1
#define _REGEX_NELTS(n)
#define _Atomic
#define PACKED
#define getaddrinfo_a(a,b,c,d)

  // add includes
  #include "/usr/include/GAServices.h"
  #include "/usr/include/GlobalArray.h"
  #include "/usr/include/PGroup.h"
  #include "/usr/include/chemio.h"
  #include "/usr/include/coms.h"
  #include "/usr/include/dra.h"
  #include "/usr/include/eaf.h"
  #include "/usr/include/elio.h"
  #include "/usr/include/farg.h"
  #include "/usr/include/ga++.h"
  #include "/usr/include/ga-mpi.h"
  #include "/usr/include/ga-papi.h"
  #include "/usr/include/ga-wapi.h"
  #include "/usr/include/ga.h"
  #include "/usr/include/gacommon.h"
  #include "/usr/include/init_term.h"
  #include "/usr/include/macdecls.h"
  #include "/usr/include/macommon.h"
  #include "/usr/include/matypes.h"
  #include "/usr/include/msgtypesc.h"
  #include "/usr/include/msgtypesf.h"
  #include "/usr/include/services.h"
  #include "/usr/include/sf.h"
  #include "/usr/include/tcgmsg.h"
  #include "/usr/include/typesf2c.h"

  // add namespaces
  namespace GA{typedef int tmp_add_type_1;}
  GA::tmp_add_type_1 tmp_add_func_1(){return 0;};

The GCC parameters:
  gcc -fdump-lang-raw -fkeep-inline-functions -c -x c++ -fpermissive -w "/tmp/2Ns4Y8DK0_/dump1.h"

In file included from /tmp/2Ns4Y8DK0_/dump1.h:22:
/usr/include/ga-mpi.h:4:10: fatal error: mpi.h: No such file or directory
    4 | #include <mpi.h>
      |          ^~~~~~~
compilation terminated.